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Cursor Fine Structure set_app_subdomain

How to: Cursor Fine Structure set_app_subdomain

client:Cursor transport:streamable-http tool:set_app_subdomain

Add Fine Structure to Cursor

  1. 01

    Open ~/.cursor/mcp.json and merge this in. Keep any servers already there.

{
  "mcpServers": {
    "fine-structure": {
      "url": "https://finestructure.ai/api/mcp"
    }
  }
}
  1. 02

    Save the file and restart Cursor.

  2. 03

    Ask for something set_app_subdomain does. Cursor lists the server's tools on connect and calls set_app_subdomain itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that Fine Structure's identifier in your config matches the one above exactly.

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.